Audioholics is monetizing the site through content marketing, which relies on publishing as often as possible to raise search engine ranking and hit more keywords. When people are curious about a product, they generally search for that direct model number. Audioholics then can 'preview' a speaker, and quickly rank for that search query. This drives traffic to the site. Traffic equates to advertising revenue. Generally traffic analytics is used to then 'pitch' companies like Martin Login to sponsor the costs of making videos, managing the site, etc.
Martin Logan may be fine with this agreement regarding the videos. One of the main psychological concepts of content marketing is to make a brand a trusted source of information. When you trust them, your more likely to buy from them.
Where this gets irritating is when it is done without regard for quality of content. Matt Cutts (s/p) of Google wrote an interesting article about when this becomes 'robotic' in nature and, generally just pollution. This 'preview' is actually one of the better ones, some previews are downright junk straight off the press release.
In the end, this can bite Audioholics back. People keep searching, and these 'previews' keep appearing - which aren't as helpful for purchasing decisions. In turn, they trust Audioholics less as a reviewing resource.
I have a hard time knocking Audioholics for wanting to monetize the site as best they can, but, I too struggle with some of the newer practices. The quality and thoughtful comments of forum members are what keep me here.